期刊
ACS OMEGA
卷 7, 期 21, 页码 18085-18093出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsomega.2c01603
关键词
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资金
- Natural Science Foundation of Chongqing [cstc2020jcyjmsxmX0341]
- Science and Technology Research Program of Chongqing Municipal Education Commission [KJQN202101416]
- Chongqing Municipal Education Commission [CXQT20026]
In this study, gold nanoparticles were in situ installed on the surface of graphitic carbon nitride based on supramolecular hydroxylatopillar[6]arene. The in situ anchoring of gold nanoparticles was achieved through a redox reaction without the need for other reducing agents. The resulting hybrid nanomaterial exhibited higher catalytic capability in various applications compared to conventional catalysts.
Gold nanoparticles (Au NPs) are installed in situ on the surfaces of graphitic carbon nitride (g-C3N4) based on supramolecular hydroxylatopillar[6]arene (P6). The Au NPs can be obtained via the redox reaction between HAuCl4 and P6 without any NH2-NH2, NaBH4, and other reductants, where AuCl4- is reduced to Au-0 by the -OH groups in the presence of OH-, and the -OH groups are oxidized into -COOH. First, P6 is loaded onto the surface of g-C3N4 via pi-pi interaction between P6 and gC(3)N(4), which offers a stabilized and reduced site for in situ anchoring of Au NPs. The hybrid nanomaterial Au-NPs@P6@g-C3N4 exhibits higher catalytic capability than the Pd/C catalyst in 4-nitrophenol (4-NP) reduction and methylene blue degradation, which opens a new avenue for designing more efficient hybrid nanomaterials for application in catalysis, sensing, and other fields.
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